Shane Bishop created FLINK-25993:
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Summary: Option to disable Kryo.setRegistrationRequired(false)
Key: FLINK-25993
URL: https://issues.apache.org/jira/browse/FLINK-25993
Project: Flink
Issue Type: New Feature
Affects Versions: 1.14.3
Reporter: Shane Bishop
I would like to request a mechanism that a Flink library user could use to
optionally disable Kryo.setRegistrationRequired(false).
The motivation is that Kyro.setRegistrationRequired(true) was made the safe
default in [this
commit|https://github.com/EsotericSoftware/kryo/commit/fc7f0cc7037ff1384b4cdac5b7ada287c64f0a00]
(specifically the change was [this
line|https://github.com/EsotericSoftware/kryo/commit/fc7f0cc7037ff1384b4cdac5b7ada287c64f0a00#diff-6d4638ca49aa0d0d9171ff04a0faa22e241f8320fda4a8a12c95853188d055a0R130]
in the commit). This default is overriden in the 1.14.3 Flink release (see
[KryoSerializer.java|https://github.com/apache/flink/blob/release-1.14.3/flink-core/src/main/java/org/apache/flink/api/java/typeutils/runtime/kryo/KryoSerializer.java#L492]
and
[FlinkScalaKryoInstantiator.scala|https://github.com/apache/flink/blob/release-1.14.3/flink-scala/src/main/scala/org/apache/flink/runtime/types/FlinkScalaKryoInstantiator.scala#L46]).
Reference to thread in mailing list:
https://lists.apache.org/thread/0bzro3qmmsqrz5kh7lmx3xwfyj8wl5rk
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